Description The Milwaukee Thunderbolt Black Oxide Drill Bit is designed for fast, precise drilling in wood, metal, and plastic, delivering professional-grade performance for both DIY projects and heavy-duty use. Made from high-speed steel with a black oxide finish, it resists corrosion, provides long-lasting durability, and features a precision tip and optimized flutes for accurate starts and efficient chip removal.Product Details:Black oxide finish for corrosion resistance and extended lifeHigh-speed steel construction for strength and durabilityPrecision tip ensures accurate starts and reduces walkingOptimized flute design removes chips efficientlyDrills wood, metal, and plastic with consistent resultsFits standard drill chucks and available in multiple sizes